Feeder-platform



(N0 Model.)

A. J. WIRTZ, H. J. O. RICHTER & O. H. WIRTZ.

FEEDER PLATFORM.

Patented 001;. 29, 1889.

u. PETUTS. Phollhhognptw. Wuhingtm Im:

UNITED STATES PATENT OFFICE.

ADOLPHUS J. WVIRTZ AND HENRY J. O. RICHTER, OF GRAND HARBOR,

DAKOTA TERRITORY, AND CHARLES H. WIRTZ, OF NORTHFIELD MINNESOTA.

FEEDER-PLATFORM.

SPECIFICA'IION forming pa.rt of Letters Patent N0. 413,993, da.ted October 29, 1889.

Applioation file(l May 22, 1889. Serial N0. 311,724. (N0 model.)

T0 all wh0m it mag concern:

Be itknown that we, ADOLPHUS J. VVIRTZ and HENRY J. O. RICHTER, eitizens of the United Stabes, residing a1: Grand Harbor, in ehe eounty 0f Ramsey, Dakota Territory, and CHARLES H. WIRTZ, a eitizen of the United States, resicling an Northfield, Rice eounty, Minnesota, have invented eertain new and useful Improvements in Feeder-Platforms, 0f which the following is a specification.

Our invention consists in a novel eonstruetion of feeder-platforms such as are used in connection Witl1 feeders f0r th1ashing-machines, and has for its objeet the produetion of a platfor1n that shall be simple, eheap, and strong in eonstruetion ancl eapable 0f effeeting an even ancl regular feed of the grain.

In the drawings, Figure 1 is a perspeetive view of our improvecl platform, and Figs. 2 and 3 detail views.

Tl1e manner of mountiug the platform, as it forn1s 110 part 0f the presen invention, is not herein shown; but we prefer to mount it es illustmed in our pending applieation, Sexial N0. 297,113, and give (0 its receiving encl an up- Ward and forwarcl and downward and backward movement, ancl t0 impart t0 its delivery end merely a baekwarcl and forward movement.

A indicates the baseboard 01 bottom 0f the platform, provided 011 its upper faee With bars 01 blades B B,Whieh extend longitudinally 01 in the direetion of movement of the platform. These blades B B are made of metal ancl are bent laterally along the lower edge to form a f0011 01 an attaching-ear a,which rests squarely upon the upper faee of the baseboard A, as shown in Fig. l, the blades 01 bare; being rigidly affixed in position by means of b0lts or serews passing through the fee 01 ears. By bending the bars 01 blades as shown they eure stiffened against lateral strains, ancl in turn strengthen the base-board, he L-shaped bars er blades being well adapted t0 withstancl the strains t0 whieh they and the platform are subjeeted. The intermediate ba1s 0r blades B are notchecl, 01 serrated along the upper edge,the stmight face 01 the teeth facing the delivery end 0f the platform, as shown. Beginning at t11e receiving encl and continuing f01 about three-fifths (1n01e 01 less) 01": their length, the upper notehed edge 0f bar B is approximately parallel with the upper faee of the base-board; but from the termination of this straight 01 parallel portion the blacle 0r bar deereases in height toward the delivery end 0f the platform. T11e outer b2us B B difi?er from t-he intermediate bars in that they are notched throughout a portion 0f their length only, the receiving end and the portion parallel with the base-board; that inst-ead of decreasing in height they inerease, and, finally, that they are provided 011 their inner faces with pushing ribs, flanges, 01' plates, 110 familitate the discharge 0f the grain. The ribs 01 flanges b may be made and applied in various ways; bat; ehe preferrecl manner 0f eonstructing them is illustraed in the clrawings, up0n 1eferenee to whieh it Will be Seen tl1ab the ribs are made of a piece of sheeb metal bent so that lt Sll8ll proj eet f10111 'ohe immer face 0f the bar 01 plate t0 which it is applied.

The ribs 01 flanges b,which we te1n1 push-= ers, are riveted or otherwise seeured t0 the inner faees of the bars 01 plates B B, With tl1e bent portion projeeting toward the delivery end and outward and away from its bar 01 plate, the forward edge of the pushers bein g advisably, but not neeessarily, at1ight angles t0 the base-board. Besides 30131119, to die eha1ge ehe grain, these pushers Z) stiffen and brace tl1e side bars or plates B B. 'Il1e deerease in l1eighn 0f the plates or bars B B allows tl1e grain t0 spread out, and thereby in= sures freer feeding of the grain,the latterbeing prevented from working 01T ab ohe sides of the platform by the side bars 01 plates B B, the pushers b b of whieh aid in discharging' the grain. As the grain descends toward Ehe delivery end 0f the platform, it expands and spreads out, ancl 110 provide f0r this and prevent the grain from being thrown off a1; the sides the side bars B B are inereased in height, the intermediate bars being decreased correspondingly t0 allow the grain t0 leave the platform in a broad. even Stream. The kernels whieh are detaehed 2ue preventecl from werk}ng otf: ab the sicles by ehe plates 01' bars B B The mnnber of the pushers may be varied as desired and their arrangement modified considerably without aifeetin g the utility of the device.

The particular form 0f the bars becomes important When the plaoform is used in counection With a pressrake 01 shield, as des cribed and elaimed in our prior applieation before referred 1:0.

Of eourse 110 broad elaim is made by us to t-he employment of toothed bars decr'easing in height toward 1she delivery end 0f the platform; nor d0 we wish 130 be understood as claiming a hopper provided 011 its sides With separate teeth Set a considerable distanee apart.

Having thus described 0111 invention, what WG elaim is l. In combination with base-board A, plates 01 bars B B.',increasing in height, and intermediate plates or bars B B, decreasing in height toward the delivery end, all substantially as shown.

2. In oombinaoion With base4ooard A, places or bars B B, applied t0 the upper'face thereof, and having their upper edgeS parallel with the base-board throughout a portion f their length and clecreasing in height frorn the termination of said parallel portion toward' the delivery end.

3. In eombination with base-board A, plates 01 bars B B, decr asing in height toward. the delivery end and notched 0n their upper edge, and plates B B, incr'easing in heigl1t toward the delivery end ancl also notehed on their upper edge.

' 4. In 00mbination With base-boa'rd A, plates 01 bars B and B, tl1e former decreasing in height toward the delivery end 1": the platfonn, and ribs b b, secured t0 the inner faces 0f the plates B ab approximauely 1ight angles 130 the board A.

5. In eombination with base-board A, plates 01 bars B B, applied the1eto, am]. ribs 01' flanges seeured 130 the innen faee of each bar 01 plate and projecting oubwardly therefrom.

In witness whereof we hereuntoet 0urhands in t-he p'resence of tv'v0 witnesses.

ADOLPHUS J. WIRTZ. HENRY J. O. RICHTER. CHARLES H. WIRTZ.

Witnesses to signatures 0f A. J. Wirtz and H. J. O. Richter: T. T. LEE, W. W. WISHART. \Vit-uesses to signature of C. H. WVirtz:

G. W. PYE, G. M. SEARLE. 

